Articles.BookmarkedBy.Us is a niche social bookmarking website which is specifically aimed at finding the best online articles frorm a range of different topics. You can use it to promote your Xombytes, your hubs if you also write for hubpages, or any other online articles that you have published on any other website, including your blog posts (as long as they have a decent amount of writing). All of the links are also dofollow, which is good for improving the position of your articles in the search results.